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        1. 【題目】These Chinese________(invent) names are difficult to remember, but their contributions are really great.

          【答案】inventors’

          【解析】

          句意:這些中國(guó)發(fā)明家的名字很難記住,但他們的貢獻(xiàn)確實(shí)是巨大的。

          names名字,名詞需用形容詞或所有格修飾;these這些,修飾復(fù)數(shù)名詞;根據(jù)句意結(jié)構(gòu)和所給單詞提示,可知需用inventor的復(fù)數(shù)形式;以-s結(jié)尾的名詞所有格直接在后面加-’,故填inventors’。

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